KYB KG4530 Shock Absorber - Front

KYB Gas-a-Just Front Shock for Mercedes-Benz

The KYB Gas-a-Just KG4530 is a front suspension shock absorber built as an OE monotube replacement for select Mercedes-Benz models. It is designed to restore original ride control while adding quicker response for heavier-duty driving conditions.

Gas-a-Just Product Line

KYB Gas-a-Just shocks use a monotube design with separate hydraulic and high-pressure nitrogen gas chambers. That layout supports consistent damping, fade resistance, and immediate response when the suspension is working harder than stock.

Key Features

• Adds up to 25% more damping performance than original equipment shocks
• Monotube construction separates gas and oil for fade-free operation
• High gas pressure improves steering response
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Designed specifically for Mercedes-Benz applications
• Includes dust cover, B-stop, and R-stop

Detailed Description

Part number KG4530 is a front suspension shock absorber for Mercedes-Benz W126 and related chassis applications, including 300SE, 300SEL, 420SEL, 560SEL, 560SEC, and other listed models. It is a strong OE-style replacement for vehicles that work, tow, or run larger, heavier tires and wheels, where added damping control can make a noticeable difference in ride stability and steering feel. This part cross-references Monroe Shocks & Struts (e.g., 39002) for the same application.

Compatible With 1976-1992 Mercedes-Benz front applications listed in the fitment data, including 300D, 300SD, 300TD, 300SDL, 380SE, 380SEL, 380SEC, 380SL, 380SLC, 420SEL, 500SEL, 500SEC, 560SEL, 560SEC, and 500SEL/500SEC/W126 and C126 variants where noted. KG4530 is also referenced against Gabriel 69996 for the same application.

What It Helps Address

• Excessive bounce or poor body control over bumps
• Slow steering response during lane changes and cornering
• Shock fade during repeated suspension movement
• Ride instability on heavier Mercedes-Benz chassis setups
• Reduced damping performance from worn OE shocks

Installation Notes

• Front position only
• Lower mount type: SPECIAL; upper mount type: S1
• Dust cover is included
• Some 300D and 300TD applications note replacing the suspension strut and coil spring assembly according to manufacturer instructions
• Verify Hydromat or hydraulic suspension exclusions before ordering

Quality Assurance

KYB engineers Gas-a-Just shocks as OE monotube replacements with application-specific valving for Mercedes-Benz suspension requirements. The design supports consistent damping performance and helps maintain the operation expected by the vehicle manufacturer’s suspension and safety systems.